Deserialization of Untrusted DataWeakness · CWE-502

CVE-2026-25445

HIGH · 8.8 CVSS v3.1 Published 2026-03-19
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
94/100
Remediation priority · Urgent
Remotely reachable Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Deserialization of Untrusted Data vulnerability in Membership Software WishList Member X allows Object Injection.This issue affects WishList Member X: from n/a through 3.29.0.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

The vulnerability is a PHP Object Injection issue stemming from insecure deserialization of untrusted data in WishList Member X plugin versions up to 3.29.0. An attacker can craft malicious serialized PHP objects and inject them through vulnerable input paths, potentially leading to remote code execution, file operations, or database compromise depending on available gadget chains in the application.

MitigationUpdate WishList Member X to the latest patched version once available. If no patch exists, disable the plugin until remediation is possible, and implement additional input validation/sanitization at the web application firewall level as a temporary measure.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Verify WishList Member X plugin is installed
    Check your WordPress plugins directory or navigate to WP Admin > Plugins to confirm WishList Member X (or WishList Member) is present.
    Affected if Plugin named WishList Member X or WishList Member is found in the plugins list.
  2. Determine installed plugin version
    View the plugin version in the WordPress plugin admin page, or inspect the main plugin file (e.g., wishlist-member-x.php) for the 'Version' header comment.
    Affected if The version number is 3.29.0 or lower.
  3. Confirm plugin is active
    Check the WordPress admin plugins page to see if WishList Member X is currently activated.
    Affected if Plugin is active and running.
  4. Check for user input handling
    Review server access logs or application traffic for requests to WishList Member X endpoints that accept serialized data (such as API endpoints or callback handlers processing $_POST, $_GET, or $_REQUEST parameters).
    Affected if User-supplied data from external sources is being processed by the plugin.

A user is affected if WishList Member X version 3.29.0 or lower is installed, active, and processing user-controlled data through the vulnerable deserialization mechanism.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update WishList Member X to the latest patched version once available. If no patch exists, disable the plugin until remediation is possible, and implement additional input validation/sanitization at the web application firewall level as a temporary measure.

Recommended fix Moderate confidence

Upgrade to WishList Member X version 3.29.1 or later

  1. 1. Backup your current WordPress site and database before making any changes
  2. 2. Navigate to the WordPress admin dashboard
  3. 3. Go to Plugins > Installed Plugins
  4. 4. Find WishList Member X in the plugin list
  5. 5. Check if an update is available for the plugin
  6. 6. If an update is available, click 'Update Now' to install the latest version
  7. 7. Alternatively, download the latest version from the official WordPress plugin repository or WishList Member website
  8. 8. After updating, verify the plugin is running on a version newer than 3.29.0

Generated from the published advisory — verify against the referenced sources before acting.

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA1.0 h
10.0 hours of engineering $1,750
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2026-25445 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-25445 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
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